CN211100635U - Quick belt cleaning device of test tube for chemistry and chemical industry experiments - Google Patents

Quick belt cleaning device of test tube for chemistry and chemical industry experiments Download PDF

Info

Publication number
CN211100635U
CN211100635U CN201921541265.7U CN201921541265U CN211100635U CN 211100635 U CN211100635 U CN 211100635U CN 201921541265 U CN201921541265 U CN 201921541265U CN 211100635 U CN211100635 U CN 211100635U
Authority
CN
China
Prior art keywords
test tube
box
waste water
water
hot air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201921541265.7U
Other languages
Chinese (zh)
Inventor
李建飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong University of Science and Technology
Original Assignee
Shandong University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong University of Science and Technology filed Critical Shandong University of Science and Technology
Priority to CN201921541265.7U priority Critical patent/CN211100635U/en
Application granted granted Critical
Publication of CN211100635U publication Critical patent/CN211100635U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
  • Cleaning In General (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

The utility model discloses a quick cleaning device of test tube for chemistry and chemical engineering experiments, including the device body, the top of device body is equipped with the washing case, and the bottom of washing case is connected with the waste water tank, and the bottom of waste water tank is equipped with the waste water drain pipe, and one side welding of waste water tank has the battery box, and the cleaning mode that the device adopted can carry out the automatic washing to the test tube, need not artifical washing, and not only efficient, but also reduce the cost of labor, can not scald the staff because of the too high temperature of washing the test tube, can not cause too much test tube to collide with each other and break either; the device can insert every test tube on the spray pipe, washs the test tube through spray pipe spun boiling water, but also can drive the test tube rotation through the braking of motor, lets the washing cotton of cladding on the spray pipe wash the test tube inner wall fast to improve cleaning quality, can also dry the test tube through the air heater after the washing is accomplished, let the inner wall of test tube can not remain water stain.

Description

Quick belt cleaning device of test tube for chemistry and chemical industry experiments
Technical Field
The utility model relates to a chemistry chemical industry field specifically is a quick belt cleaning device of test tube for chemistry and chemistry experiments.
Background
In the chemical industry field, often need do the experiment to draw the conclusion, but often must be indispensible in the time of the experiment be the test tube, and the test tube needs to wash it after using to accomplish, and current washing mode is single, has many defects, specifically as follows: 1, the existing test tube cleaning mode is simple, workers usually adopt sterilized water or boiling water for sterilization and cleaning, manual operation is needed, the efficiency is low, the speed is low, the labor cost is increased, the phenomenon that the workers are scalded is caused, and the test tube is easy to break; 2, test tube cleaning devices are also available in the market, but the existing test tube cleaning devices are single in function, test tubes are usually thrown into the devices and washed by high-temperature water, the purpose of thorough cleaning cannot be achieved, water stains are remained on the inner walls of the test tubes after the cleaning, and the next use is influenced; 3. the existing test tube cleaning device can not carry out rotary cleaning on the test tube and can not carry out drying treatment on the cleaned test tube.
Disclosure of Invention
The utility model aims at prior art's defect, provide a quick belt cleaning device of test tube for chemistry and chemical industry experiments to solve the problem that above-mentioned background art provided.
In order to achieve the above object, the utility model provides a following technical scheme: a quick cleaning device for test tubes for chemical engineering experiments comprises a device body, wherein a cleaning box is arranged at the top end of the device body, a waste water box is connected to the bottom end of the cleaning box, a waste water drain pipe is arranged at the bottom end of the waste water box, a battery box is welded at one side of the waste water box, a heating water box is welded at the other side of the waste water box, an electric heating device is installed at the top end of the heating water box, a centrifugal pump is arranged at one side of the electric heating device, a water delivery pipe is connected onto the centrifugal pump, a hot air box is installed at the top end of the battery box, a gas delivery pipe is connected onto the hot air box, an electric telescopic rod is installed at one side of the hot air box, a top plate is installed at the top end of the electric telescopic rod, an illuminating lamp box is installed on the top plate, install switch on the shell of waste water tank, wash the inside top of case and install the test tube mount, be equipped with a plurality of jack on the test tube mount, the spray pipe fixed plate is installed to the inside bottom of test tube mount, be equipped with on the spray pipe fixed plate with the test tube mount on the jack assorted jack groove, and be equipped with a plurality of hole that leaks on the jack groove, the bottom in jack groove is equipped with the runner, first solenoid valve is installed to the one end of runner, and the second solenoid valve is installed to the other end, threaded connection has a plurality of spray pipe on the runner, the cover has the washing cotton on the spray pipe, all be equipped with a plurality of hole for water spraying on washing cotton and the spray pipe.
As an optimized technical scheme of the utility model, the bottom welding of device body has the supporting leg, be connected with power plug on the battery box.
As an optimal technical scheme of the utility model, electric telescopic handle pass through the bolt respectively with battery box and roof are fixed to be linked to each other, the illumination lamp house passes through the bolt and installs on the bottom of roof, the motor mounting panel passes through the bolt fastening on the roof, the motor passes through the bolt fastening on the motor mounting panel, the cone with the pivot of motor is fixed to link to each other.
As a preferred technical scheme of the utility model, hot-blast case passes through the bolt to be installed on the top of battery box, the centrifugal pump passes through the bolt fastening on heating water tank's top, the centrifugal pump passes through the raceway with the runner links to each other, hot-blast case passes through the gas-supply pipe with the runner links to each other.
As the utility model discloses a preferred technical scheme, electric heater unit installs heating water tank's inside, electric heater unit comprises electric heating rod and temperature controller, heating water tank links to each other with the running water pipe, waste water drainage pipe with the waste water tank welding links to each other, the last hand valve of installing of waste water drainage pipe.
As an optimal technical scheme of the utility model, the test tube mount passes through the bolt fastening wash on the case, the runner adopts nonrust steel pipe to make, the welding of spray pipe fixed plate is in the top of waste water tank.
As an optimal technical scheme of the utility model, power plug with battery and switch in the battery box link to each other, switch respectively with electric heater unit, centrifugal pump, hot-blast case, electric telescopic handle, lighting lamp house, motor, first solenoid valve and second solenoid valve electric connection.
As an optimal technical scheme of the utility model, be equipped with fan and electric heating net in the hot-blast incasement, fan and electric heating net all pass through the bolt fastening inside the hot-blast incasement portion.
The utility model has the advantages that: this quick belt cleaning device of test tube for chemistry and chemical industry experiments has following advantage:
the device has the advantages that 1, the device can automatically clean the test tube in a cleaning mode without manual cleaning, so that the efficiency is high, the labor cost is reduced, workers cannot be scalded due to overhigh water temperature for cleaning the test tube, and the test tube cannot be broken due to excessive collision;
2, the device can insert every test tube on the spray pipe, washs the test tube through spray pipe spun boiling water, but also can drive the test tube rotation through the braking of motor, lets the washing cotton of cladding on the spray pipe wash the test tube inner wall fast to improve cleaning quality, wash and can also dry the test tube through the air heater after accomplishing, let the inner wall of test tube can not remain water stain.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the cleaning tank of the present invention;
FIG. 3 is a schematic view of the connection structure between the water spraying pipe and the flow passage according to the present invention;
in the figure: 1. the device body, 2, the waste water tank, 3, the battery box, 4, the heating water tank, 5, electric heater unit, 6, the centrifugal pump, 7, the raceway, 8, wash the case, 9, switch, 10, waste water drainage pipe, 11, hot-blast case, 12, electric telescopic handle, 13, the gas-supply pipe, 14, the roof, 15, the illumination lamp house, 16, the motor mounting panel, 17, the motor, 18, the supporting leg, 19, power plug, 20, test tube mount, 21, the spray pipe fixed plate, 22, the hole that leaks, 23, the spray pipe, 24, first solenoid valve, 25, wash the cotton, 26, the conical head, 27, the runner, 28, the second solenoid valve, 29, the hole for water spraying.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention can be clearly and clearly defined.
Example (b): referring to fig. 1-3, the present invention provides a technical solution: a test tube rapid cleaning device for chemical engineering experiments comprises a device body 1, a cleaning box 8 is arranged at the top end of the device body 1, a waste water box 2 is connected to the bottom end of the cleaning box 8, a waste water drain pipe 10 is arranged at the bottom end of the waste water box 2, a battery box 3 is welded at one side of the waste water box 2, a heating water box 4 is welded at the other side of the waste water box 2, an electric heating device 5 is installed at the top end of the heating water box 4, a centrifugal pump 6 is arranged at one side of the electric heating device 5, a water delivery pipe 7 is connected onto the centrifugal pump 6, a hot air box 11 is installed at the top end of the battery box 3, a gas delivery pipe 13 is connected onto the hot air box 11, an electric telescopic rod 12 is installed at one side of the hot air box 11, a top plate 14 is installed at the top end of the electric telescopic rod 12, an illuminating lamp box 15, install switch 9 on the shell of waste water tank 2, wash the inside top of case 8 and install test tube mount 20, be equipped with a plurality of jack on test tube mount 20, spray pipe fixed plate 21 is installed to test tube mount 20's inside bottom, be equipped with on the spray pipe fixed plate 21 with the test tube mount 20 on the jack assorted jack groove, and be equipped with a plurality of hole 22 that leaks on the jack groove, the bottom in jack groove is equipped with runner 27, first solenoid valve 24 is installed to runner 27's one end, second solenoid valve 28 is installed to the other end, threaded connection has a plurality of spray pipe 23 on the runner 27, the cover has washing cotton 25 on the spray pipe 23, all be equipped with a plurality of hole 29 on washing cotton 25 and the spray pipe 23.
The bottom welding of device body 1 has supporting leg 18, is connected with power plug 19 on the battery box 3, charges through external power supply for the battery in the battery box 3, prevents to use after the outage.
Electric telescopic handle 12 passes through the bolt respectively with battery box 3 and roof 14 fixed continuous, lighting lamp house 15 passes through the bolt and installs on roof 14's bottom, motor mounting panel 16 passes through the bolt fastening on roof 14, motor 17 passes through the bolt fastening on motor mounting panel 16, conical head 26 links to each other with motor 17's pivot is fixed, raise roof 14 through electric telescopic handle 12, it puts the test tube to be convenient for the staff to get from wasing 8 incasement, when electric telescopic handle 12 descends, block the test tube through conical head 26, it is rotatory to recycle motor 17's braking, thereby it is rotatory around wasing cotton 25 to drive the test tube, recycle the 29 blowout boiling water of hole on the spray pipe 23, with wasing cotton 25 synergism, thereby carry out high-efficient washing to the test tube inner wall.
The hot-blast case 11 passes through the bolt and installs on the top of battery box 3, centrifugal pump 6 passes through the bolt fastening on the top of heating water tank 4, centrifugal pump 6 passes through raceway 7 and links to each other with runner 27, hot-blast case 11 passes through the gas-supply pipe 13 and links to each other with runner 27, can produce hot-blast drying to the test tube inner wall through hot-blast case 11 after the washing is accomplished, centrifugal pump 6 can be in the boiling water suction runner 27 in the heating water tank 4 to spout from the hole for water spraying 29 on the spray pipe 23.
The electric heating device 5 is arranged in the heating water tank 4, the electric heating device 5 is composed of an electric heating rod and a temperature controller, the heating water tank 4 is connected with a tap water pipe, the waste water drainage pipe 10 is connected with the waste water tank 2 in a welding mode, and the waste water drainage pipe 10 is provided with a hand valve.
The test tube fixing frame 20 is fixed on the cleaning box 8 through bolts, the flow channel 27 is made of stainless steel tubes, and the spray pipe fixing plate 21 is welded at the top of the waste water box 2.
The power plug 19 is connected with a storage battery in the battery box 3 and the power switch 9, the power switch 9 is respectively electrically connected with the electric heating device 5, the centrifugal pump 6, the hot air box 11, the electric telescopic rod 12, the lighting lamp box 15, the motor 17, the first electromagnetic valve 24 and the second electromagnetic valve 28, and the power of the electric heating device 5, the centrifugal pump 6, the hot air box 11, the electric telescopic rod 12, the lighting lamp box 15, the motor 17, the first electromagnetic valve 24 and the second electromagnetic valve 28 is respectively switched on through the power switch 9.
Be equipped with fan and electric heating net in the hot-blast case 11, fan and electric heating net all through the bolt fastening inside hot-blast case 11, generate heat through electric heating net, utilize the fan to carry the heat that electric heating net produced in runner 27, then spout from the hole for water spraying 29 on the spray pipe 23 again, dry the test tube.
The working principle is as follows: a test tube rapid cleaning device for chemical engineering experiments comprises a device body 1, a waste water tank 2, a battery box 3, a heating water tank 4, an electric heating device 5, a centrifugal pump 6, a water delivery pipe 7, a cleaning box 8, a power switch 9, a waste water drainage pipe 10, a hot air tank 11, an electric telescopic rod 12, a gas delivery pipe 13, a top plate 14, a lighting lamp box 15, a motor mounting plate 16, a motor 17, a supporting leg 18, a power plug 19, a test tube fixing frame 20, a spray tube fixing plate 21, a water leakage hole 22, a spray tube 23, a first electromagnetic valve 24, cleaning cotton 25, a conical head 26, a flow channel 27, a second electromagnetic valve 28 and a water spraying hole 29, wherein when the device is used, the power supply of the electric telescopic rod 12 is switched on through the power switch 9, the electric telescopic rod 12 is lifted, the top plate 14 is lifted to one position, a test tube to be cleaned is inverted, penetrates through a, then the electric telescopic rod 12 is slowly descended, the conical head 26 at the bottom of the motor 17 is inserted into the test tube, the conical head 26 is made of silica gel material and can be adsorbed with the test tube under certain pressure when contacting the glass test tube, then the power switch of the electric heating device 5 is turned on, the heating rod of the electric heating device 5 is enabled to heat the water in the heating water tank 4, when the water in the heating water tank 4 reaches 100 ℃, the power switch of the centrifugal pump 6 and the second electromagnetic valve 28 is turned on, the boiling water in the heating water tank 4 is pumped into the flow channel 27 by the centrifugal pump 6 and is conveyed to the water spraying pipe 23, the boiling water is sprayed out from the water spraying hole 29 of the water spraying pipe 23 to wash the inner wall of the test tube, meanwhile, the power switch of the motor 17 is turned on, the motor 17 drives the conical head 26 to rotate, so that the conical head 26 drives the test tube to rotate, and the test tube contacts with the cleaning cotton 25 when rotating, the inner wall of the test tube is scrubbed by the cleaning cotton 25, after the cleaning is finished, the power switches of the centrifugal pump 6 and the second electromagnetic valve 28 are closed, the power switches of the hot air box 11 and the first electromagnetic valve 24 are opened, hot air generated by the hot air box 11 is transmitted into the flow channel 27 and is transmitted to the spray pipe 23 through the flow channel 27, and is sprayed out from the spray holes 29 on the spray pipe 23, and the test tube is dried.
The device adopts a cleaning mode which can automatically clean the test tube without manual cleaning, not only has high efficiency, but also reduces labor cost, can not scald workers due to overhigh water temperature for cleaning the test tube, and can not cause the test tube to be crushed due to too much collision; the device can insert every test tube on the spray pipe, washs the test tube through spray pipe spun boiling water, but also can drive the test tube rotation through the braking of motor, lets the washing cotton of cladding on the spray pipe wash the test tube inner wall fast to improve cleaning quality, can also dry the test tube through the air heater after the washing is accomplished, let the inner wall of test tube can not remain water stain.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims (8)

1. The utility model provides a quick belt cleaning device of test tube for chemistry and chemical industry experiments, includes device body (1), its characterized in that: the device comprises a device body (1), wherein a cleaning box (8) is arranged at the top end of the device body (1), a waste water box (2) is connected to the bottom end of the cleaning box (8), a waste water drainage pipe (10) is arranged at the bottom end of the waste water box (2), a battery box (3) is welded at one side of the waste water box (2), a heating water box (4) is welded at the other side of the waste water box, an electric heating device (5) is installed at the top end of the heating water box (4), a centrifugal pump (6) is arranged at one side of the electric heating device (5), a water conveying pipe (7) is connected to the centrifugal pump (6), a hot air box (11) is installed at the top end of the battery box (3), a gas conveying pipe (13) is connected to the hot air box (11), an electric telescopic rod (12) is installed at one side of the hot air box (11, one side of illumination lamp house (15) is equipped with motor mounting panel (16), install a plurality of motor (17) on motor mounting panel (16), the bottom connection of motor (17) is fixed with cone (26), install switch (9) on the shell of waste water tank (2), wash the inside top of case (8) and install test tube mount (20), be equipped with a plurality of jack on test tube mount (20), spray pipe fixed plate (21) is installed to the inside bottom of test tube mount (20), be equipped with on spray pipe fixed plate (21) with the jack assorted jack socket on test tube mount (20), and be equipped with a plurality of hole (22) that leak on the jack socket, the bottom in jack socket is equipped with runner (27), first solenoid valve (24) are installed to the one end of runner (27), second solenoid valve (28) are installed to the other end, the runner (27) is in threaded connection with a plurality of water spraying pipes (23), the water spraying pipes (23) are sleeved with cleaning cotton (25), and the cleaning cotton (25) and the water spraying pipes (23) are respectively provided with a plurality of water spraying holes (29).
2. The rapid cleaning device for the test tube for the chemical engineering experiment according to claim 1, which is characterized in that: the device is characterized in that supporting legs (18) are welded at the bottom end of the device body (1), and a power plug (19) is connected to the battery box (3).
3. The rapid cleaning device for the test tube for the chemical engineering experiment according to claim 1, which is characterized in that: electric telescopic handle (12) pass through the bolt respectively with battery box (3) and roof (14) are fixed continuous, lighting lamp house (15) are installed through the bolt on the bottom of roof (14), motor mounting panel (16) pass through the bolt fastening on roof (14), motor (17) pass through the bolt fastening on motor mounting panel (16), conical head (26) with the pivot of motor (17) is fixed continuous.
4. The rapid cleaning device for the test tube for the chemical engineering experiment according to claim 1, which is characterized in that: the hot air box (11) is installed on the top of the battery box (3) through bolts, the centrifugal pump (6) is fixed on the top of the heating water box (4) through bolts, the centrifugal pump (6) is connected with the flow channel (27) through the water conveying pipe (7), and the hot air box (11) is connected with the flow channel (27) through the air conveying pipe (13).
5. The rapid cleaning device for the test tube for the chemical engineering experiment according to claim 1, which is characterized in that: electric heater unit (5) are installed the inside of heating water tank (4), electric heater unit (5) comprise electric heating rod and temperature controller, heating water tank (4) link to each other with the water pipe, waste water drainage pipe (10) with waste water tank (2) welding links to each other, install the hand valve on waste water drainage pipe (10).
6. The rapid cleaning device for the test tube for the chemical engineering experiment according to claim 1, which is characterized in that: the test tube fixing frame (20) is fixed on the cleaning box (8) through bolts, the flow channel (27) is made of stainless steel tubes, and the water spray tube fixing plate (21) is welded to the top of the waste water box (2).
7. The rapid cleaning device for the test tube for the chemical engineering experiment according to claim 2, which is characterized in that: the power plug (19) is connected with a storage battery and a power switch (9) in the battery box (3), and the power switch (9) is electrically connected with the electric heating device (5), the centrifugal pump (6), the hot air box (11), the electric telescopic rod (12), the lighting lamp box (15), the motor (17), the first electromagnetic valve (24) and the second electromagnetic valve (28) respectively.
8. The rapid cleaning device for the test tube for the chemical engineering experiment according to claim 1, which is characterized in that: a fan and an electric heating net are arranged in the hot air box (11), and the fan and the electric heating net are fixed inside the hot air box (11) through bolts.
CN201921541265.7U 2019-09-17 2019-09-17 Quick belt cleaning device of test tube for chemistry and chemical industry experiments Expired - Fee Related CN211100635U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921541265.7U CN211100635U (en) 2019-09-17 2019-09-17 Quick belt cleaning device of test tube for chemistry and chemical industry experiments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921541265.7U CN211100635U (en) 2019-09-17 2019-09-17 Quick belt cleaning device of test tube for chemistry and chemical industry experiments

Publications (1)

Publication Number Publication Date
CN211100635U true CN211100635U (en) 2020-07-28

Family

ID=71716167

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921541265.7U Expired - Fee Related CN211100635U (en) 2019-09-17 2019-09-17 Quick belt cleaning device of test tube for chemistry and chemical industry experiments

Country Status (1)

Country Link
CN (1) CN211100635U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112246810A (en) * 2020-08-27 2021-01-22 南京旭羽睿材料科技有限公司 Cleaning device and cleaning method for high-pressure-resistant borosilicate tube production
CN113042485A (en) * 2021-02-08 2021-06-29 张云云 Production equipment for chemical preparation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112246810A (en) * 2020-08-27 2021-01-22 南京旭羽睿材料科技有限公司 Cleaning device and cleaning method for high-pressure-resistant borosilicate tube production
CN113042485A (en) * 2021-02-08 2021-06-29 张云云 Production equipment for chemical preparation

Similar Documents

Publication Publication Date Title
CN106269660A (en) A kind of automatic shaft bearing cleaning machine
CN211100635U (en) Quick belt cleaning device of test tube for chemistry and chemical industry experiments
CN207222515U (en) A kind of clinical laboratory's test tube cleaning drying integral machine
CN106824929A (en) A kind of vertical multi-stage quartz tube cleaner and cleaning method
CN207119591U (en) Slide cleaning device
CN209577537U (en) A kind of automatic drying integral machine
CN201579242U (en) Cleaning equipment of inner wall of bent steel pipe
CN206247790U (en) A kind of vegetables drying baker with cleaning function
CN210307263U (en) High-efficient nonrust steel pipe processingequipment
CN211637593U (en) Pipeline cleaning and blow-drying integrated device
CN209736282U (en) Multi-station rotary type high-efficiency ton barrel cleaning machine
CN208991319U (en) A kind of double turntable cleaning machines
CN215909552U (en) Instrument draining device for hospital disinfection supply room
CN212370669U (en) Cleaning and drying device for internal combustion engine parts
CN210546727U (en) Multi-arm type ultrasonic cleaning machine
CN205413732U (en) Special cleaning machine of quick type cage box
CN208482972U (en) A kind of Mongolian medicine's cupping jar chlorination equipment
CN212275698U (en) Industrial boiler waste gas detection device convenient to clearance
CN209314583U (en) A kind of full-automatic pet bathing and hair dryer
CN208942965U (en) A kind of thorough zootomy tool cleaning case of sterilization
CN208098724U (en) A kind of cleaning machine with sterilizing function
CN207756560U (en) A kind of petrochemical industry high efficiency tool cleaning device
CN205762535U (en) A kind of vial cleaning and dewatering device
CN113118162A (en) Test tube cleaning device for chemistry experiments
CN219640798U (en) Cleaning device for air conditioner condenser

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200728

Termination date: 20210917

CF01 Termination of patent right due to non-payment of annual fee